view lib/alib/parsnstr.a @ 2772:0a3f4d8ea6d5

Found ENDC in wrong location in dwread.asm and dwwrite.asm. Corrected. Moved the native 6309 code in dwread.asm and dwwrite.asm into the H6309 labeled area and changed IFEQ H6309 to IFNE H6309. Also moved the 57600bps 6809 code to the default location. This change had been done in the old dwread.asm and dwwrite.asm files to make it easier to follow. Though these two files were overwritten from the HDBDOS project dwread.asm and dwwrite.asm files. So this conversion needed to be done again so it made the source easier to follow.
author drencor-xeen
date Wed, 23 Jan 2013 12:36:55 -0600
parents 7d70b7e1cb21
children aaba193af04f
line wrap: on
line source

* Parse sign bit terminated string to convert it to a
* null terminated string. Note: if X and Y are the same
* the existing string will be overwritten -- don't do this
* with psects...

* OTHER MODULES NEEDED: none
 
* ENTRY: X=start of sign bit terminated string
*        Y=buffer for null terminated string

* EXIT: D=string size (not including null)
*       All other regs (except cc) preserved


 nam Parse sign-bit terminated string
 ttl Assembler Library Module


 psect PARSNSTR,0,0,0,0,0


PARSNSTR:
 pshs x
 lbsr STRHCPY copy string
 tfr y,x point to moved string
 lbsr STRHLEN find length of string
 pshs d size
 leax d,x
 lda ,-x get final byte
 anda #%01111111 clear sign bit
 clrb add null terminator
 std ,x  
 puls d,x,pc


 endsect